Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'MSUpdate.exe' = '%WINDIR%\WindowsUpdate\MSUpdate.exe'
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
Modifies file system
Creates the following files
- %WINDIR%\windowsupdate\msupdate.exe
- %TEMP%\protected.cpp
- %WINDIR%\windowsupdate\ msupdate.exe
Network activity
Connects to
- 'localhost':443
UDP
- DNS ASK 17.####servicegent.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\windowsupdate\msupdate.exe'
- '%WINDIR%\windowsupdate\ msupdate.exe'
- '%WINDIR%\windowsupdate\msupdate.exe' ' (with hidden window)
